public boolean onShowFileChooser()

in framework/src/org/apache/cordova/engine/SystemWebChromeClient.java [221:311]
79 lines of code
18 McCabe index (conditional complexity)

    public boolean onShowFileChooser(WebView webView, final ValueCallback<Uri[]> filePathsCallback,
            final WebChromeClient.FileChooserParams fileChooserParams) {
        Intent fileIntent = fileChooserParams.createIntent();

        // Check if multiple-select is specified
        Boolean selectMultiple = false;
        if (fileChooserParams.getMode() == WebChromeClient.FileChooserParams.MODE_OPEN_MULTIPLE) {
            selectMultiple = true;
        }
        fileIntent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, selectMultiple);

        // Uses Intent.EXTRA_MIME_TYPES to pass multiple mime types.
        String[] acceptTypes = fileChooserParams.getAcceptTypes();
        if (acceptTypes.length > 1) {
            fileIntent.setType("*/*"); // Accept all, filter mime types by Intent.EXTRA_MIME_TYPES.
            fileIntent.putExtra(Intent.EXTRA_MIME_TYPES, acceptTypes);
        }

        // Image from camera intent
        Uri tempUri = null;
        Intent captureIntent = null;
        if (fileChooserParams.isCaptureEnabled()) {
            captureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
            Context context = parentEngine.getView().getContext();
            if (context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA_ANY)
                    && captureIntent.resolveActivity(context.getPackageManager()) != null) {
                try {
                    File tempFile = createTempFile(context);
                    LOG.d(LOG_TAG, "Temporary photo capture file: " + tempFile);
                    tempUri = createUriForFile(context, tempFile);
                    LOG.d(LOG_TAG, "Temporary photo capture URI: " + tempUri);
                    captureIntent.putExtra(MediaStore.EXTRA_OUTPUT, tempUri);
                } catch (IOException e) {
                    LOG.e(LOG_TAG, "Unable to create temporary file for photo capture", e);
                    captureIntent = null;
                }
            } else {
                LOG.w(LOG_TAG, "Device does not support photo capture");
                captureIntent = null;
            }
        }
        final Uri captureUri = tempUri;

        // Chooser intent
        Intent chooserIntent = Intent.createChooser(fileIntent, null);
        if (captureIntent != null) {
            chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, new Intent[] { captureIntent });
        }

        try {
            LOG.i(LOG_TAG, "Starting intent for file chooser");
            parentEngine.cordova.startActivityForResult(new CordovaPlugin() {
                @Override
                public void onActivityResult(int requestCode, int resultCode, Intent intent) {
                    // Handle result
                    Uri[] result = null;
                    if (resultCode == Activity.RESULT_OK) {
                        List<Uri> uris = new ArrayList<Uri>();

                        if (intent != null && intent.getData() != null) { // single file
                            LOG.v(LOG_TAG, "Adding file (single): " + intent.getData());
                            uris.add(intent.getData());
                        } else if (captureUri != null) { // camera
                            LOG.v(LOG_TAG, "Adding camera capture: " + captureUri);
                            uris.add(captureUri);
                        } else if (intent != null && intent.getClipData() != null) { // multiple files
                            ClipData clipData = intent.getClipData();
                            int count = clipData.getItemCount();
                            for (int i = 0; i < count; i++) {
                                Uri uri = clipData.getItemAt(i).getUri();
                                LOG.v(LOG_TAG, "Adding file (multiple): " + uri);
                                if (uri != null) {
                                    uris.add(uri);
                                }
                            }
                        }

                        if (!uris.isEmpty()) {
                            LOG.d(LOG_TAG, "Receive file chooser URL: " + uris.toString());
                            result = uris.toArray(new Uri[uris.size()]);
                        }
                    }
                    filePathsCallback.onReceiveValue(result);
                }
            }, chooserIntent, FILECHOOSER_RESULTCODE);
        } catch (ActivityNotFoundException e) {
            LOG.w(LOG_TAG, "No activity found to handle file chooser intent.", e);
            filePathsCallback.onReceiveValue(null);
        }
        return true;
    }